The first key telephone system (KTS), the 1A was a hardwired system comprising components physically wired together by hand. Developed by the Bell System and first marketed in 1938, the 1A was an electromechanical system. See also 1A1, 1A2, and KTS.
In cases other than those described in § 82, the pth moment with regard to the axis of u is given by Pp = XPrA where A is the total area of the original trapezette, and S 2 _ 1 is the area of a trapezette whose ordinates at successive distances h, beginning and ending with the bounding ordinates, are o, x1P -1A, x2 P-1 (AI+AI),.
C'est 1a," he wrote, " que j'ai connu enfin ma vocation."
And took ï¿½1a ï¿½ therein the coefficient of the function (mis mï¿½ 2s Es m 3s 3s ...).